Thread-holding device



".l'an. 15 1924. W. B. KlNG THREAD HOLDING DEVICE Filed July 2 I 'Figa l Inz/e ntr WM film/ess www Patented dan. 15, 1924.

` UNITED STATES PATENT OFFICE.

WILLIAM B. KING, OIE' NEEDHAM, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOEKMA- CHINERY CORPORATION, OF PATElEtSON,l NE'VJ JERSEY, A CORPORATION OF NEW JERSEY.

THREAD-HOLDING DEVICE.

Application inea July 24,1920.

To f/,ZZ wiz/m t may concer/a:

`Be it know that I, WILLIAM B. Inmo., a citizen of the United States, residing at Needham, in the county of Norfolk and exact description ofthe invention, such' as will enable others skilled in the art to which it appertains to make and use the same.

The invention relatesto thread holding devices.

Many machines,"including upper lacing machines, draw their threads from stationary thread cops which are so held with relation to the thread guides that the thread may draw axially oit of the free end ot the cop. As the thread unwinds from the cop it is given a twist which may tend to increase or tol decrease the normal twist in the thread according to which end of the cop the thread is drawn from. In using certain kinds of thread it has been found that the increased twist which may thus be given to the thread may cause it to kink to such a degree as to interfere `with its passage through the thread guides and its proper delivery to the thread using machine.` In such cases it becomes important that the thread cop should be so positioned that the thread will unwind therefrom in a direction to decrease rather than increase the normal twist in the thread.` The present invention insures the desired positioning of the `cop whether to increase or decrease the twist in the thread by the provision of means which predetermines the end from which the thread shall be drawn and precludes the positioning` of the cop for withdrawal of the thread from its opposite end. This means preferablyV comprises cooperating stops or detents on the cop supporting spindle and cop tube which are so arranged that they will permit placing ot the cop upon the spindle in but one direction. The detent on the cop tube may be, and preferably is, formed by indenting the tube near one end to form an integral stop or detent projecting into the interior of the tube.

The preferred form of the invention is shown in the drawings in which Fig. 1 is a sectional view'ot a thread holder provided with the invention. Figs. 2 and 8 are views illustrating the modeof operation of the Serial No. 398,613.

cop positioning devices and Fig. 4 is a sec-` tional view on line if-1, Fig.` 8.` l

In the drawings the invention is shown as applied to a thread holder can such as is used for holding the thread supply for upper lacing machines and for other machines. The can comprises upper and lower telescoping sections 2 and lwhich form an inclosing casing for thethread supply. The lower section is provided with a base plate 6, to the center of which thelower end of the cop spindle 8 is secured; The upper sectionis provided with the thread guide 10 arranged in line with the upper or free end of the spindleso that thread may be drawn axially from the upper or free end of a threadcop 12 placed on the spindle.

The means for determining which end of the cop shall be its tree end when placed on thecop spindle comprises devices on the cop tube and spindle which preclude placing the cop on the spindle wrong end first. In the specific construction shown a. stop or detent is formed on the cop tube by cutting a transverse slit 14 in the tube near one end and by indenting` the tube beyond the slit. An abrupt detent or stop shoulder 16 is thus formed which projects into the tube near one end and by engaging an abutment or stop on the spindle prevents the placing of the cop thereon this end rst. As shown the spindle is provided with an annular shoulder 18 near its upper end which forms an abutment or stop arranged to cooperate with the stop 16. It it is attempted to place the cop on the spindle in such position that the end which should be the free end would engage the basevplate 6 the stop 16 will engage the shoulder 18 as indicated in Fig. 2 and prevent the placing of the cop on the spindle in such position. The stops 16 and 18 will not, however, interfere with the placing of the cop on the spindle in the proper manner as indicated in Fig. 3.

It it is desired that the thread should draw from the cop in a direction tending to decrease the twist in the thread and thus prevent the kinking which might occur if the thread were drawn from the opposite end of the cop then the thread will be wound on the cop tube in a manner to secure this result when the tube is placed on the spindle as indicated in Fig, 3. If for any reason it is desirable that the thread should be given an increased twist as it draws from the cop then in Winding the cop the thread should be Wound in the opposite direction. That is to say, the cop tube should be reversed or turned end for end in the Cop Winding machine.

1While it is preferred to utilize the specic construction of the invention shown and described it will be understood that this construction is not essential to the broader fea; tures of the invention and may be varied or modified Without departing therefrom,

IWhat is claimed is:

l, A thread holder comprising a station? ary cop spindle, having one end free, a thread cop having the thread so Wound thereon that it may be vdrawn axially otl' of either end of the cop and provided With a cylindrical cop tube, rneans for preventing the placing of the cop on the spindle one end first and permitting theplacing of it on the spindle, the other end first and a guide through which the thread is drawn axially from the tree end of the stationary 1??. A thread holder comprising` a stationary cop spindle having a tree end, a thread cop havingthe lthread so wound thereon that it may be drawn axially ott' of either end of the cop andprovided With a cylindrical cop tube and stops on the tube and spindle arranged to prevent the placing of the cop on the spindle Wrong end iirst, and a guide through Which the thread is drawn axially from the free end of the stationary cop.

3. A thread holder comprising a stationary cylindrical spindle having one end tree, guides for the thread to draw the saine in an axial direction from a stationary thread cop mounted on the spindle, a cylindrical cop tube and a detent extending inwardly from the Wall of the cop tube near one end and arranged to engage a shoulder on the spindle to prevent the placing of the cop that end lirst on the spindle. y Y i 4. A cylindrical cop tube havingits wall indented to form an inwardly projectingl detent for determining from which end of the cop the thread should be drawn axially to secure a predetermined effect on the normal twist of the threadl 5. A thread holder comprising a stationary base, a cop spindle secured at one end to the base, a thread cop provided with a cop tube having its Wall bent inward near one end to form a stop for preventing the placing of the cop on the spindle this end first, and a thread guide arranged substantially in line with the free end of the spindle.

WILLIAM B. KING. 

